The whole 'burning in' thing is a fallacy. There's a recent article on it, I think possibly in Sound on Sound. Basically it may have made some sense in the days of cardboard speaker cones but modern materials and magnets don't require any burnin and the sound you get on day one is the sound you should get years from now. Of course, psychologically you may feel better and it's harmless, but definitely a total waste of time. Unfortunately there's a lot of nonsense floating around in the audiophile area (like special 'oxygen free' cable etc) but it's simply not worth trying to engage with true believers in this area. Many years ago I entered a debate on the subject and one of the protagonists got so angry I heard several weeks later he actually died of a heart attack!. So now I just say, 'whatever'....